Marco Rubio, the popular, first-term U.S. Senator from Florida, endorsed Mitt Romney for president in an appearance on a Fox News TV program Wednesday night. It's just the latest endorsement as Romney's candidacy begins to take on an air of invincibility — at least among the Republican candidates.

Bill Lee, the Sanford police chief under fire for his department's reaction to the shooting death of black teenager Trayvon Martin, has stepped down, temporarily he said, so as not to be a distraction as the investigation moves forward.

Just a few years back, Miami was a city of empty condominium skyscrapers, after the housing market collapsed. But now those condos are starting to fill up, as Brazilian home buyers come in and pay with cash.

The Secret Service, responsible for protecting presidents, former presidents and nominated presidential candidates will being protecting Mitt Romney on Wednesday after his campaign requested — and received permission — for their services.

As the Florida primary results continue to pour in, several major national news outlets are projecting that Mitt Romney won big in Florida today. Newt Gingrich was projected to come in third, followed by Rick Santorum and then Ron Paul.